Facile synthesis of SERS active Ag nanoparticles in the presence of tri-n-octylphosphine sulfide

Hou, Xiaomiao; Chen, Shutang; Fang, Yan; Yan, Jilin; Li, Na; Qi, Pengxu

doi:10.1016/j.apsusc.2010.12.154

Cited by 12 publications

(8 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The SERS hot spots generated with the assistance of hydrophobic nanoparticles could enhance the SERS signals. Similarly, Hou et al synthesized hydrophobic Ag NPs in the presence of tri- n -octylphosphine sulfide . They demonstrated that the hydrophobic AgNPs had a higher SERS enhancement factor than that of the hydrophilic ones.…”

Section: Platforms For Sers-based Immunoassaymentioning

confidence: 99%

“…Similarly, Hou et al synthesized hydrophobic Ag NPs in the presence of tri-n-octylphosphine sulfide. 172 They demonstrated that the hydrophobic AgNPs had a higher SERS enhancement factor than that of the hydrophilic ones. On the basis of the above results, the sensitivity of label-free SERS detection could be improved with the phase transfer from hydrophobic to hydrophilic.…”

Section: Hydrophobic Sers Substratesmentioning

confidence: 99%

See 1 more Smart Citation

SERS-Activated Platforms for Immunoassay: Probes, Encoding Methods, and Applications

et al. 2017

View full text Add to dashboard Cite

Owing to their excellent multiplexing ability, high sensitivity, and large dynamic range, immunoassays using surface-enhanced Raman scattering (SERS) as the readout signal have found prosperous applications in fields such as disease diagnosis, environmental surveillance, and food safety supervision. Various ever-increasing demands have promoted SERS-based immunoassays from the classical sandwich-type ones to those integrated with fascinating automatic platforms (e.g., test strips and microfluidic chips). As recent years have witnessed impressive progress in SERS immunoassays, we try to comprehensively cover SERS-based immunoassays from their basic working principles to specific applications. Focusing on several basic elements in SERS immunoassays, typical structures of SERS nanoprobes, productive optical spectral encoding strategies, and popular immunoassay platforms are highlighted, followed by their representative biological applications in the last 5 years. Moreover, despite the vast advances achieved to date, SERS immunoassays still suffer from some annoying shortcomings. Thus, proposals on how to improve the SERS immunoassay performance are also discussed, as well as future challenges and perspectives, aiming to give brief and valid guidelines for choosing suitable platforms according to particular applications.

show abstract

Section: Platforms For Sers-based Immunoassaymentioning

confidence: 99%

Section: Hydrophobic Sers Substratesmentioning

confidence: 99%

SERS-Activated Platforms for Immunoassay: Probes, Encoding Methods, and Applications

et al. 2017

View full text Add to dashboard Cite

show abstract

“…However, PATP molecules on the PS/Ag substrate show the characteristic peaks located at 1008, 1071, 1140, 1182, 1301, 1389, 1439, 1472, and 1577 cm −1 ( Figure 3 b). Among these, the peaks at around 1072, 1188, and 1472 cm −1 are assigned to the υ(C–S), δ(C–H), and υ(C–C) stretching vibrations, respectively, which are dominated by characteristic a 1 vibrational modes [ 26 , 27 , 28 ]. The δ(C–H) at 1140 cm −1 , [υ(C–C) + δ(C–H)] at 1390 and 1440 cm −1 , and υ(C–C) at 1577 cm −1 are interpreted as b 2 modes [ 29 , 30 , 31 ] ( Table 1 ).…”

Section: Resultsmentioning

confidence: 99%

Controllable Charge Transfer in Ag-TiO2 Composite Structure for SERS Application

et al. 2017

View full text Add to dashboard Cite

The nanocaps array of TiO2/Ag bilayer with different Ag thicknesses and co-sputtering TiO2-Ag monolayer with different TiO2 contents were fabricated on a two-dimensional colloidal array substrate for the investigation of Surface enhanced Raman scattering (SERS) properties. For the TiO2/Ag bilayer, when the Ag thickness increased, SERS intensity decreased. Meanwhile, a significant enhancement was observed when the sublayer Ag was 10 nm compared to the pure Ag monolayer, which was ascribed to the metal-semiconductor synergistic effect that electromagnetic mechanism (EM) provided by roughness surface and charge-transfer (CT) enhancement mechanism from TiO2-Ag composite components. In comparison to the TiO2/Ag bilayer, the co-sputtered TiO2-Ag monolayer decreased the aggregation of Ag particles and led to the formation of small Ag particles, which showed that TiO2 could effectively inhibit the aggregation and growth of Ag nanoparticles.

show abstract

“…The use of TOP as a phosphorus source has become popular in solution-based nanocrystal synthesis techniques due to its versatility as a solvent, 17 as a stabilizing capping ligand (often in the presence of trioctylphosphine oxide), [18][19][20] as a strong reducing agent, 21 and as a phosphorus source for the synthesis of numerous transition metal phosphides. [22][23][24][25][26] Of particular interest, Zn 3 P 2 has been synthesized using TOP as the phosphorus source with bulk Zn 22 or with highly flammable dimethyl zinc, 27 forming mono-disperse nanocrystals in the latter.…”

Section: Trioctylphosphine As a Phosphorus Sourcementioning

confidence: 99%

Solution-based synthesis and purification of zinc tin phosphide nanowires

et al. 2015

View full text Add to dashboard Cite

The solution-based synthesis of nanoscale earth-abundant semiconductors has the potential to unlock simple, scalable, and tunable material processes which currently constrain development of novel compounds for alternative energy devices. One such promising semiconductor is zinc tin phosphide (ZnSnP2). We report the synthesis of ZnSnP2 nanowires via a solution-liquid-solid mechanism utilizing metallic zinc and tin in decomposing trioctylphosphine (TOP). Dried films of the reaction product are purified of binary phosphide phases by annealing at 345 °C. Tin is removed using a 0.1 M nitric acid treatment leaving pure ZnSnP2 nanowires. Diffuse reflectance spectroscopy indicates ZnSnP2 has a direct bandgap energy of 1.24 eV which is optimal for solar cell applications. Using a photoelectrochemical cell, we demonstrate cathodic photocurrent generation at open circuit conditions from the ZnSnP2 nanowires upon solar simulated illumination confirming p-type conductivity.

show abstract

Facile synthesis of SERS active Ag nanoparticles in the presence of tri-n-octylphosphine sulfide

Cited by 12 publications

References 22 publications

SERS-Activated Platforms for Immunoassay: Probes, Encoding Methods, and Applications

SERS-Activated Platforms for Immunoassay: Probes, Encoding Methods, and Applications

Controllable Charge Transfer in Ag-TiO2 Composite Structure for SERS Application

Solution-based synthesis and purification of zinc tin phosphide nanowires

Contact Info

Product

Resources

About